Answer: (6,2)
Step-by-step explanation:
Replace all occurrences of
y with 2x−10 in each equation.
−x+20=14
y=2x−10
Solve for x in the first equation.
x=6y=2x−10
Replace all occurrences of x with 6 in each equation.
y=2x=6
(6,2)
Point Form:
(6,2)
Equation Form:
x=6,y=2
8.5b.
7a= 5a +3b
-5a -5a
2a = 3b
/2
a= 1.5b
Solve by substitution and you get;
8.5b=8.5b
Because of the lack of constants in the equation there isn't a definite answer.
Answer:
$55
Step-by-step explanation:
Given data
Principal = $50
Rate= 10%
Time = 1 year
The simple interest formula is given as
A= P(1+rt)
substitute
A= 50(1+0.1*1)
A= 50(1.1)
A= $55
Hence the balance in her account will be $55
